# U301 AI integration on Definable

> U301 provides an API to manage all U301 resources, currently under development.

## What this connects

U301 provides an API to manage all U301 resources, currently under development.

Vendor: https://u301.com/

## Tools available

**3** tools available. First 3:

- `U301_DELETE_LINK` — Delete a shortened link — Tool to delete a shortened link by its link identifier. Use when you need to remove a shortened link from the system.
- `U301_LIST_SHORTEN_DOMAINS` — List available domains for URL shortening — Tool to list available domains for URL shortening, including public domains and custom domains. Use when you need to see what domains are available for creating short links. Supports pagination and filtering by visibility type.
- `U301_SHORTEN_LINK` — Shorten a long URL — Tool to shorten a long URL into a compact short link. Use after obtaining the long URL when you need a shareable link.

## Auth

Auth schemes: `API_KEY`.

## How agents use U301

Inside a Definable workflow, U301 is one of the tools the **Distributor specialist** can call. Example coordination patterns:

- **Researcher → U301** — the Researcher (GPT-5.5) pulls context from U301 (records, threads, documents), synthesises findings, and briefs the rest of the team.
- **Writer → Distributor → U301** — the Writer (Claude Opus 4.7) drafts copy in brand voice, the Verifier passes it, then the Distributor writes the result into U301 (create record, post message, draft email).
- **Designer / Engineer → Distributor → U301** — the Designer ships an asset or the Engineer ships a code change, the Distributor delivers it via U301 (attach file, open PR comment, post status).

The Verifier checks every U301 call. On rate limit, schema drift, or auth refresh it self-heals and retries — the workflow completes without manual intervention.

## Categories

- url shortener — https://definable.ai/apps/category/url-shortener/

## Related

- HTML page: https://definable.ai/apps/u301/
- Same category (url shortener): https://definable.ai/apps/category/url-shortener/
- All integrations: https://definable.ai/apps/
- Workflow (multi-agent loop): https://definable.ai/workflow/
- Apps llms.txt index: https://definable.ai/llms-apps.txt